xfs_repair on Debian testing 64bits

[Patrick Noël <patrick.noel@xxxxxxxxxxxxxxx>]

Hi,

i have a device with 5,3To under a debian (sarge) 32bits server.

When i try a xfs_repair (2.8.20) on 5,3To i have a message :

xfs_repair: libxfs_initbuf can't memalign 4096 bytes: Cannot allocate
memory [ ... ] 

i tried mounting the device on a 64 bits (Debian testing) and with
xfs_repair 2.8.20 there is no problem with memory but is very long (12
hours between phase 1 and phase 6)

when i use xfs_repair on 32 bits i saw 8 thread but on 64 bits just only
on thread.

i try to force 8 thread with -o thread=8

and i have this message :

 xfs_repair -o thread=8 /dev/sdb1
 - creating 8 worker thread(s)


but with ps xa  | grep repair i see only one thread.

have an idea to have several thread ?

Thanks

Patrick